<script setup>
// import { ref, onMounted, watch } from "vue";
// import { getCategoryAPI } from "@/apis/category";
// import { getBannerAPI } from "@/apis/home";
// import { useRoute } from "vue-router";
import GoodsItem from "@/views/Home/components/GoodsItem.vue";
// import { onBeforeRouteUpdate } from "vue-router";
import { useBanner } from "./composables/userBanner";
import { useCategory } from "./composables/userCategory";


const { bannerList } = useBanner()
const { categoryData } = useCategory()

// // 获取分类数据  ========= 已经抽取出去封装
// const categoryData = ref({});
// // 调用route路由方法，得到其中的id
// const route = useRoute();
// const getCategory = async (id = route.params.id) => {
//   // console.log('ioio');
//   const res = await getCategoryAPI(id);
//   console.log("二级分类列表", res);
//   categoryData.value = res.data.result;
// };
// onMounted(() => {
//   getCategory();
// });
// // 目标：期望再路由参数变化的时候， 可以把分类数据接口重新发送
// onBeforeRouteUpdate(to => {
//     // console.log('路由变化了');
//   // 存在问题：使用最新的路由参数请求最新的分类数据
//   getCategory(to.params.id);
// });


// // 获取Banner  -- ========已经抽取出去封装
// // 响应式数据 data
// const bannerList = ref([]);
// // 定义方法执行
// const getBanner = async () => {
//   const res = await getBannerAPI({
//     distributionSite: "2"
//   });
//   console.log("op", res);
//   bannerList.value = res.data.result;
// };
// onMounted(() => {
//   getBanner();
// });

// 需要手动刷新才行， 侦听路由变化进行重新渲染页面
//  还有问题： 直接返回首页的时候，又调用了一次方法，但这次没有传id, 导致接口有错误
// watch(route, () => {
//   getCategory();
// });
</script>

<template>
  <div class="top-category">
    <div class="container m-top-20">
      <!-- 面包屑 -->
      <div class="bread-container">
        <el-breadcrumb separator=">">
          <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
          <el-breadcrumb-item>{{ categoryData.name }}</el-breadcrumb-item>
        </el-breadcrumb>
      </div>
      <!-- 轮播图 -->
      <div class="home-banner">
        <el-carousel height="500px">
          <el-carousel-item v-for="banner in bannerList" :key="banner.id">
            <!-- <img src="http://yjy-xiaotuxian-dev.oss-cn-beijing.aliyuncs.com/picture/2021-04-15/6d202d8e-bb47-4f92-9523-f32ab65754f4.jpg" alt=""> -->
            <img :src="banner.imgUrl" />
          </el-carousel-item>
        </el-carousel>
      </div>
      <!-- 分类数据模板 -->
      <div class="sub-list">
        <h3>全部分类</h3>
        <ul>
          <li v-for="i in categoryData.children" :key="i.id">
            <RouterLink :to="`/category/sub/${i.id}`">
              <img :src="i.picture" />
              <p>{{ i.name }}</p>
            </RouterLink>
          </li>
        </ul>
      </div>
      <div class="ref-goods" v-for="item in categoryData.children" :key="item.id">
        <div class="head">
          <h3>- {{ item.name }}-</h3>
        </div>
        <div class="body">
          <GoodsItem v-for="good in item.goods" :goods="good" :key="good.id" />
        </div>
      </div>
    </div>
  </div>
</template>


<style scoped lang="scss">
.top-category {
  h3 {
    font-size: 28px;
    color: #666;
    font-weight: normal;
    text-align: center;
    line-height: 100px;
  }

  .sub-list {
    margin-top: 20px;
    background-color: #fff;

    ul {
      display: flex;
      padding: 0 32px;
      flex-wrap: wrap;

      li {
        width: 168px;
        height: 160px;

        a {
          text-align: center;
          display: block;
          font-size: 16px;

          img {
            width: 100px;
            height: 100px;
          }

          p {
            line-height: 40px;
          }

          &:hover {
            color: $xtxColor;
          }
        }
      }
    }
  }

  .ref-goods {
    background-color: #fff;
    margin-top: 20px;
    position: relative;

    .head {
      .xtx-more {
        position: absolute;
        top: 20px;
        right: 20px;
      }

      .tag {
        text-align: center;
        color: #999;
        font-size: 20px;
        position: relative;
        top: -20px;
      }
    }

    .body {
      display: flex;
      justify-content: space-around;
      padding: 0 40px 30px;
    }
  }

  .bread-container {
    padding: 25px 0;
  }
}
.home-banner {
  width: 1240px;
  height: 500px;
  //   position: absolute;
  //   left: 0;
  //   top: 0;
  margin: 0 auto;
  z-index: 98;

  img {
    width: 100%;
    height: 500px;
  }
}
</style>